 The majority of population growth occurred during the late 1960s due to the major urban migration that was occurring in Spain at the time.Between 1960 and 1970, the population grew 470%, from 1,809 inhabitants to 10,317.This migration continued at an elevated rate during the 1970s, as people from Castilla-La Mancha, Andalusia and Extremadura settled in the area in order to commute to Madrid.